公开(公告)号：US20240333574A1

公开(公告)日：2024-10-03

申请号：US18444130

申请日：2024-02-16

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Kwanwoong RYU ,  Chung Sup Kim ,  Hyuk Je Kim ,  Sung Woong Choi ,  Kwonhue Choi ,  Hyung-seop Son

IPC: H04L27/26

CPC classification number: H04L27/265 ,  H04L27/2607 ,  H04L27/2628

Abstract: Provided are a signal transmission method and signal reception method of heterogeneous systems sharing a frequency band. The signal transmission method performed by a transmitter of a target communication system sharing a frequency band of a general communication system in an underlay form includes mapping information symbols to be transmitted to a delay-Doppler (DD) domain and determining an information symbol mapping matrix, applying an inverse symplectic finite Fourier transform (ISFFT) to the information symbol mapping matrix and transforming the information symbol mapping matrix into a frequency-time (FT) matrix, and applying a Heisenberg transform to the FT matrix and generating a transmission signal of a time domain.